Her husband, who was also struggling with heroin and cocaine addiction, had hidden her body under a pile of clothes, bin bags and blankets.

Rausing, who pleaded guilty in court last July to preventing the lawful burial of his wife and was ordered to undertake a drugs rehabilitation programme and given a 10-month prison sentence, suspended for two years.

Reuters

Chelsea owner Abramovich stands before the UEFA Champions League final at the Luzhniki stadium in Moscow

He bought Abramovich's Chelsea mansion last December. Earlier this month he submitted plans to remodel it to include landscaped gardens, servants' quarters and a new entrance.

Chelsea owner Abramovich and his girlfriend, Dasha Zhukova, bought the mansion for £25m in 2011 and embarked on a renovation programme.

But their £10m plans to build a lavish basement development met fierce local opposition.

A spokesman for Rausing said: "Mr Rausing's aim is to restore the Georgian listed home to its former glory in way that is sensitive to the period of the property."